Perhaps you should try some spelling variations:
ban hang » ngan hang
mai khoi » mai khoa, tai khoa, cac khoi
ve cham » va cham, ve chat, vu cham
vai cua » dai cua, hai cua, lai cua
soc ban » hoc ban, coc ban, so ban
hieu ve » hieu va, hieu van
ban ky » van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » di cua
tu ban » thu ban, te ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky nang ((ma hoi) or (mai khoi)). hieu ve cham soc ban hang ((vi cua) OR (vai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky nang ((ma hoi) OR (mai khoi)). hieu ve cham soc ban hang ((vi cua) OR (vai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ky nang ((ma hoi) or (mai khoi)). hieu ve cham soc ban hang ((vi cua) OR (vai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu ban ky nang ((ma hoi) or (mai khoi)). hieu ve cham soc ban hang ((vi cua) OR (vai cua)) triet*.